Stamping device having a reversible printing member

Abstract

A stamping device includes a printing member which has two pivot shafts pivotably connected to two insides of a casing and a plurality of teeth are arranged along a semi-circular protrusion on two ends of the printing member. The two pivot shafts extend through two slots of a support frame which includes two racks on two insides thereof so that when the printing member is lowered when pressing the casing downward, the teeth movably engage with the racks and the printing member rotates 180 degrees so that the printing face faces downward to stamp on document.

1. A stamping device comprising:
 a casing having two insides;  
 a frame having an end inserted in an open bottom of the casing and an ink pad connected in the frame, a spring biased between the inner top of the casing and an outer top of the frame;  
 a support member having an end plate with an aperture defined therethrough and two connection bars extending perpendicularly from each one of two ends of the support member, a slot defined between the two connection bars which are connected to the frame, a rack attached on an inside of one of the two connection bars of each end of the support member, and  
 a printing member having a printing face on one side thereof and two pivot shafts extending from two opposite ends thereof, the two pivot shafts movably extending through the two slots of the support frame and pivotably connected to the two insides of the casing, a plurality of teeth arranged on a semi-circular protrusion on the two opposite ends of the printing member so that the teeth are movably engaged with the racks and the printing member rotates 180 degrees.  
 
   
   
     2. The stamping device as claimed in  claim 1 , wherein the casing includes two guide rods extending from an inner top thereof and the outer top of the frame includes two holes on two ends thereof such that the two guide rods are movably inserted in the two holes. 
   
   
     3. The stamping device as claimed in  claim 2 , wherein each of the two guide rods has a recess defined in a surface thereof and the two pivot shafts of the printing member are engaged with the two recesses. 
   
   
     4. The stamping device as claimed in  claim 2 , wherein a plurality of ridges extend from the inner top of the casing so as to form a fitting space between the ridges, the outer top of the frame having a positioning protrusion, the spring having one end fitted in the fitting space and the other end of the spring mounted on the positioning protrusion.